Patents by Inventor Detlef Marth

Detlef Marth has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pumping assembly with a grounding connection having sharp edges to bite into an insulating layer of the pump housing
    Patent number: 7927113
    Abstract: Electric fuel pumps are already known with a pump housing and a ground terminal, which is provided on a terminal cover, for making contact with an electrical ground, in which the pump housing and the ground terminal are connected to one another via a ground connection, which has a first contact section for making contact with the pump housing and a second contact section for making contact with the ground terminal. The first contact section is provided on the outer circumference of a terminal cover and, after installation, is pressed with a contact pressure against the inner face of the pump housing. Since the inner face of the pump housing has increasingly been provided with an electrically insulating anticorrosion coating, however, when the terminal cover is pressed into the pump housing, touching contact with the pump housing does take place which is usually also electrically conductive, but as a result of the electrically insulating coating has a high electrical resistance.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: April 19, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Pascal Chaumet, Detlef Marth, Erich Jahrstorfer, Ingo Immendoerfer, Philip De Haan, Bruno Schoener
  • PUMPING ASSEMBLY
    Publication number: 20100323552
    Abstract: Electric fuel pumps are already known with a pump housing and a ground terminal, which is provided on a terminal cover, for making contact with an electrical ground, in which the pump housing and the ground terminal are connected to one another via a ground connection, which has a first contact section for making contact with the pump housing and a second contact section for making contact with the ground terminal. The first contact section is provided on the outer circumference of a terminal cover and, after installation, is pressed with a contact pressure against the inner face of the pump housing. Since the inner face of the pump housing has increasingly been provided with an electrically insulating anticorrosion coating, however, when the terminal cover is pressed into the pump housing, touching contact with the pump housing does take place which is usually also electrically conductive, but as a result of the electrically insulating coating has a high electrical resistance.
    Type: Application
    Filed: September 20, 2007
    Publication date: December 23, 2010
    Inventors: Pascal Chaumet, Detlef Marth, Erich Jahrstorfer, Ingo Immendoerfer, Bruno Schoener, Philip De HAAN
  • Commutator motor
    Patent number: 6037693
    Abstract: A commutator motor has at least two supply terminals; a metallic pole tube, and an interference suppressing device, the pole tube being formed as a part of the interference suppressing device.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: March 14, 2000
    Assignee: Robert Bosch GmbH
    Inventors: Detlef Marth, Johann Rothkopf, Luciano Zorzin, Wolfgang Pfaff, Dirk Arnold